Getting dressed makes a famous old model weary (7)
I believe the answer is:
attired
'getting dressed makes' is the definition.
I can't tell whether this definition defines the answer.
'a famous old model weary' is the wordplay.
I cannot really see how this works, but
'a' is within the answer.
'model' could be 't' (Ford Model T car) and 't' is found in the answer.
'weary' could be 'tired' (similar in meaning) and 'tired' is present in the answer.
This accounts for all the letters.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for attired that I've seen before include "surrounded by duds" , "Turned out" , "got up" , "Wearing clothes" , "Dressed or clothed" .)